怎么判断是不是 VS的C/C++库

2014-05-04 12:16:37 198 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

MAC+VS Code+C/C++调试配置 MAC+VS Code+C/C++调试配置第二篇博客啦，这一篇博客接着上篇没有写完的内容，继续跟大家安利颜值无敌高的VS Code。由于自己的小白本质，在配置VS Code的C/C++环境时，很多事情并不清楚，第一次虽然配置成功了，但是后来自己又想重新整理一下工作区的文件，结果越理越乱，索性将整个文件夹删了（无奈脸），结果后来重新调试一直不成功，然后自己又有点强迫症，就一定想要配置好，结果... 阅读详情

想写一个通用点的C++函数

myfunction()

{

wchar_t* filename;

#ifdef VS //这里,有没有什么办法

_wfopen(filename

#else



fopen(wcharTochar(filename) 

endif

}

有一些VS特有的C++函数(注意,不是MFC的),想通过这里判断一下.

...全文

VS Code编译C/C++ C/C++环境的配置要比python的复杂许多，好几个配置文件要写。一、编译C/C++的环境一般都是集成在我们的编辑器中的，如果电脑上有codeblock和dev c++的读者可以去安装路径下找找MinGW文件夹，可以不用重复下载。而没有的读者则需要下载MinGW 二、配置环境变量，这里就不重复截图了，下面的是python配置环境变量的步骤，而这里只要找到我们的MinGW文件夹下的bin... 阅读详情

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切换为时间正序

ken_scott 2014-05-04

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看2L 说的

Jenf_Mu 2014-05-04

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参看候捷的 <C++模板库源码剖析> 第一章就讲了怎么区别这些不同版本的C++库

珍惜生命远离CPP 2014-05-04

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_MSC_VER

ningto.com 2014-05-04

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应该是判断 #ifdef WIN32 吧

赵4老师 2014-05-04

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Predefined Macros The compiler recognizes six predefined ANSI C macros (see Table 1.1), and the Microsoft C++ implementation provides several more (see Table 1.2). These macros take no arguments and cannot be redefined. Their value (except for __LINE__ and __FILE__) must be constant throughout compilation. Some of the predefined macros listed below are defined with multiple values. Their values can be set by selecting the corresponding menu option in the Visual C++ development environment, or by using a command-line switch. See the tables below for more information. Table 1.1 ANSI Predefined Macros Macro Description __DATE__ The compilation date of the current source file. The date is a string literal of the form Mmm dd yyyy. The month name Mmm is the same as for dates generated by the library function asctime declared in TIME.H. __FILE__ The name of the current source file. __FILE__ expands to a string surrounded by double quotation marks. __LINE__ The line number in the current source file. The line number is a decimal integer constant. It can be altered with a #line directive. __STDC__ Indicates full conformance with the ANSI C standard. Defined as the integer constant 1 only if the /Za compiler option is given and you are not compiling C++ code; otherwise is undefined. __TIME__ The most recent compilation time of the current source file. The time is a string literal of the form hh:mm:ss. __TIMESTAMP__ The date and time of the last modification of the current source file, expressed as a string literal in the form Ddd Mmm Date hh:mm:ss yyyy, where Ddd is the abbreviated day of the week and Date is an integer from 1 to 31. Table 1.2 Microsoft-Specific Predefined Macros Macro Description _CHAR_UNSIGNED Default char type is unsigned. Defined when /J is specified. __cplusplus Defined for C++ programs only. _CPPRTTI Defined for code compiled with /GR (Enable Run-Time Type Information). _CPPUNWIND Defined for code compiled with /GX (Enable Exception Handling). _DLL Defined when /MD or /MDd (Multithread DLL) is specified. _M_ALPHA Defined for DEC ALPHA platforms. It is defined as 1 by the ALPHA compiler, and it is not defined if another compiler is used. _M_IX86 Defined for x86 processors. See Table 1.3 for more details. _M_MPPC Defined for Power Macintosh platforms. Default is 601 (/QP601). See Table 1.4 for more details. _M_MRX000 Defined for MIPS platforms. Default is 4000 (/QMR4000). See Table 1.5 for more details. _M_PPC Defined for PowerPC platforms. Default is 604 (/QP604). See Table 1.6 for more details. _MFC_VER Defines the MFC version. Defined as 0x0421 for Microsoft Foundation Class Library 4.21. Always defined. _MSC_EXTENSIONS This macro is defined when compiling with the /Ze compiler option (the default). Its value, when defined, is 1. _MSC_VER Defines the compiler version. Defined as 1200 for Microsoft Visual C++ 6.0. Always defined. _MT Defined when /MD or /MDd (Multithreaded DLL) or /MT or /MTd (Multithreaded) is specified. _WIN32 Defined for applications for Win32®. Always defined. As shown in following tables, the compiler generates a value for the preprocessor identifiers that reflect the processor option specified. Table 1.3 Values for _M_IX86 Option in Developer Studio Command-Line Option Resulting Value Blend /GB _M_IX86 = 500 (Default. Future compilers will emit a different value to reflect the dominant processor.) Pentium /G5 _M_IX86 = 500 Pentium Pro /G6 _M_IX86 = 600 80386 /G3 _M_IX86 = 300 80486 /G4 _M_IX86 = 400 Table 1.4 Values for _M_MPPC Option in development environment Command-Line Option Resulting Value PowerPC 601 /QP601 _M_MPPC = 601 (Default) PowerPC 603 /QP603 _M_MPPC = 603 PowerPC 604 /QP604 _M_MPPC = 604 PowerPC 620 /QP620 _M_MPPC = 620 Table 1.5 Values for _M_MRX000 Option in Developer Studio Command-Line Option Resulting Value R4000 /QMR4000 _M_MRX000 = 4000 (Default) R4100 /QMR4100 _M_MRX000 = 4100 R4200 /QMR4200 _M_MRX000 = 4200 R4400 /QMR4400 _M_MRX000 = 4400 R4600 /QMR4600 _M_MRX000 = 4600 R10000 /QMR10000 _M_MRX000 = 10000 Table 1.6 Values for _M_PPC Option in Developer Studio Command-Line Option Resulting Value PowerPC 601 /QP601 _M_PPC = 601 PowerPC 603 /QP603 _M_PPC = 603 PowerPC 604 /QP604 _M_PPC = 604 (Default) PowerPC 620 /QP620 _M_PPC = 620

怎么判断是不是 VS的C/C++库

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